Question

What is the difference between wind storm and cyclone with definations

Answer 1

is wind? What is the cause of wind?
A. Moving air is called wind. Air moves from high pressure region to the low pressure region. It is caused due to the difference in air pressure
between the two places. Due to the heat of the sun air becomes warm, producing a low pressure. So, the warm air rises up and the cool air from
the surrounding moves towards the area.

2. What is cyclone and how is it formed?
A. Winds blowing at a speed of 120 km per hour or above are known as cyclone. A cyclone is known by different names in different parts of the world. It is called ‘hurricane’ in the American continent. It is called typhoon in Japan, China and Philippines. In Australia, it is called Willy-Willies.

Formation of cyclone: The formation of cyclone is a very complex process. Due to heat of the atmosphere water gets evaporated and changes to water vapour. When water vapour changes back to water due to condensation, the heat is released to atmosphere and warms the air around. Then the hot air rises up causing a drop in pressure. More air from surrounding regions not only rushes in but also starts spiraling. This cycle is repeated. This chain of events ends with the formation of a very low-pressure system with very high speed winds evolving around it. This weather condition called a cyclone. Factors like wind speed, wind direction temperature and humidity contribute to the development of cyclone.

3. What are the different reasons for wind current?
A. The different reasons for wind currents are :
i) Uneven heating between the equator and the poles due to shape of earth and its inclination.
ii) Uneven heating of land and water.